Carə tuttə, vi invitiamo al seminario dei Baby Geometri della prossima settimana: *Lunedì 13 Aprile 2026, alle ore 11:15* Presso l’*Aula Contini* (Palazzo della Carovana) *Shaked Bader* (University of Oxford) terrà un seminario dal titolo: *Group cohomology with Banach space coefficients* di cui riportiamo l'abstract: Gromov conjectured that the L^p-cohomology of simple Lie groups vanishes below the rank. Farb conjectured a fixed point property for actions of lattices in such groups on CAT(0) cell complexes of dimension lower than the rank. In this talk I will give a short introduction to group cohomology and prove that vanishing of \ell^1-cohomology up to degree n implies a finite orbit for every action on an n-dimensional contrcatible complex, thus in particular establishing that Gromov's conjecture implies Farb's conjecture. I will then give some insight to the proof of Gromov's conjecture. This talk is based on joint work with Saar Bader, Uri Bader and Roman Sauer. Vi ricordiamo infine che potrete trovare informazioni sui prossimi seminari sul nostro sito. Tutte le persone interessate sono invitate a partecipare. A presto, Lə organizzatorə